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authorThomas Bushnell, BSG <thomas@gnu.org>1996-09-12 22:22:29 +0000
committerThomas Bushnell, BSG <thomas@gnu.org>1996-09-12 22:22:29 +0000
commitae2ddc98c17c17897398c8d960d984789ecab0d9 (patch)
tree0cc8f727ebaac4445fb9420043c1fcea61c82a24 /sysdeps/mach/libc-lock.h
parentf33b97f91391579f28d9346967d713345790eaeb (diff)
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*** empty log message ***
	(vfprintf): Only call __libc_cleanup_region_end if USE_IN_LIBIO,
	thus matching the sense of the tests around
	__libc_cleanup_region_start at the front of the function.
	* stdio-common/vfscanf.c: Include <libc-lock.h>.
	(UNLOCK_STREAM) [! USE_IN_LIBIO]: Call
	__libc_cleanup_region_end, not __libc_cleanup_region_start.
Diffstat (limited to 'sysdeps/mach/libc-lock.h')
-rw-r--r--sysdeps/mach/libc-lock.h14
1 files changed, 14 insertions, 0 deletions
diff --git a/sysdeps/mach/libc-lock.h b/sysdeps/mach/libc-lock.h
index 2c39592717..ea3d306a52 100644
--- a/sysdeps/mach/libc-lock.h
+++ b/sysdeps/mach/libc-lock.h
@@ -56,5 +56,19 @@ typedef struct __libc_lock_opaque__ __libc_lock_t;
 /* Unlock the named lock variable.  */
 #define __libc_lock_unlock(NAME) __mutex_unlock (&(NAME))
 
+/* Start a critical region with a cleanup function */
+#define __libc_cleanup_region_start(FCT, ARG)				    \
+{									    \
+  (typeof FCT) __save_FCT = FCT;					    \
+  (typeof ARG) __save_ARG = ARG;					    \
+  /* close brace is in __libc_cleanup_region_end below. */
+
+/* End a critical region started with __libc_cleanup_region_start. */
+#define __libc_cleanup_region_end(DOIT)					    \
+  if (DOIT)								    \
+    (* __save_FCT)(__save_ARG);						    \
+}
+
+      
 
 #endif	/* libc-lock.h */